[PATCH] Staging: comedi: kcomedilib: replace deprecated simple_strtoul() with kstrtouint()

[Chase Southwood]

Since simple_strtoul() has been deprecated, replace it with kstrtouint().
Also, since return code checking for this new function is enforced, add a
check to ensure that the conversion has succeeded.

Signed-off-by: Chase Southwood <chase.southwood@xxxxxxxxx>
---
 drivers/staging/comedi/kcomedilib/kcomedilib_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
index 7dc5a18..8923e65 100644
--- a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
+++ b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
@@ -41,7 +41,8 @@ struct comedi_device *comedi_open(const char *filename)
 	if (strncmp(filename, "/dev/comedi", 11) != 0)
 		return NULL;
 
-	minor = simple_strtoul(filename + 11, NULL, 0);
+	if (kstrtouint(filename + 11, 0, &minor))
+		return NULL;
 
 	if (minor >= COMEDI_NUM_BOARD_MINORS)
 		return NULL;
-- 
1.8.5.3

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